CN216426590U - Jacking device integrating lead screw and oil cylinder - Google Patents
Jacking device integrating lead screw and oil cylinder Download PDFInfo
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- CN216426590U CN216426590U CN202123297022.3U CN202123297022U CN216426590U CN 216426590 U CN216426590 U CN 216426590U CN 202123297022 U CN202123297022 U CN 202123297022U CN 216426590 U CN216426590 U CN 216426590U
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- jacking
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Abstract
The utility model relates to the technical field of engineering equipment, in particular to a jacking device integrating a lead screw and an oil cylinder, which comprises a cylinder barrel and a piston rod; the bearing part is of a hollow cylindrical structure and is sleeved on the outer peripheral side of the cylinder barrel, the inner wall of the bearing part is abutted with the outer wall of the cylinder barrel, and the bearing part can move up and down along the cylinder barrel; the lifting gear is fixed on the bearing part; the lifting motor is movably fixed on a lifting rod, the lifting rod is positioned on one side of the jacking oil cylinder, and the lifting motor drives the lifting gear and the bearing part to synchronously rotate through a transmission assembly, so that the bearing part ascends or descends along the cylinder barrel; the cylinder barrel and the bearing part of the lifting oil cylinder form a screw and nut pair, so that the lifting oil cylinder is suitable for jacking a large load, the complexity of the structure is reduced, and the overall weight of the device is reduced; the power required by the lifting motor is small, the weight is light, the power required by driving the lifting motor is also small, and the cost is reduced.
Description
Technical Field
The utility model relates to an engineering equipment technical field especially relates to a lead screw and integrative jacking device of hydro-cylinder.
Background
At present, jacking equipment mainly comprises a hydraulic oil cylinder, a lead screw jacking device and the like.
In some important working conditions, the hydraulic oil cylinder has certain potential safety hazards due to the problem of oil leakage of the sealing ring; in this case, the stress system is generally switched by using a hoop to ensure safety, but the hoop needs to be moved manually, which is labor-intensive.
The screw rod jacking is safer and more reliable compared with a hydraulic oil cylinder. However, the screw rod is not suitable for the working condition of large-load jacking, the jacking speed is slow, the power required by jacking is large, the cost is high, and therefore the screw rod jacking is applied to the working condition of large load less.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the above-mentioned prior art, the utility model provides a carry out the hydro-cylinder with the lead screw combine, safe and reliable's lead screw and integrative jacking device of hydro-cylinder.
The utility model provides a lead screw and integrative jacking device of hydro-cylinder, include:
the jacking oil cylinder comprises a cylinder barrel and a piston rod;
the bearing part is of a hollow cylindrical structure and is sleeved on the outer peripheral side of the cylinder barrel, the inner wall of the bearing part is abutted with the outer wall of the cylinder barrel, and the bearing part can move up and down along the cylinder barrel;
the lifting gear is fixed on the bearing part;
the lifting motor is movably fixed on a lifting rod, the lifting rod is positioned on the outer side of the jacking oil cylinder, and the lifting motor drives the lifting gear and the bearing part to synchronously rotate through a transmission assembly, so that the bearing part ascends or descends along the cylinder barrel.
The jacking device has the advantages that the jacking oil cylinder is used for carrying out loaded jacking, after jacking is in place, the transmission assembly is driven by the lifting motor, the transmission assembly drives the lifting gear and the bearing part to ascend along the cylinder barrel, when the bearing part runs to the height of the piston rod, the oil return of the jacking oil cylinder is unloaded, and the bearing part bears load.
In some embodiments of the present application, a first threaded portion is disposed on an outer wall of the cylinder, and a second threaded portion matched with the first threaded portion is disposed on an inner wall of the bearing portion, so that the bearing portion can move up or down along the cylinder when rotating, and thus, bearing of a large load is completed.
In some embodiments of this application, transmission assembly includes the driving gear with lifting gear meshing, the top of driving gear is provided with upper limit plate, the bottom symmetry is provided with lower limit plate, lifting gear's rotation axis with upper limit plate or the shortest distance between the lower limit plate is less than or equal to the radius of lifting gear's root circle, bearing portion reciprocate along the cylinder, and the biography lifting gear also reciprocates thereupon, and upper limit plate or lower limit plate receive lifting gear's vertical direction's effort for elevator motor reciprocates.
In some embodiments of the present application, the lifting gear is horizontally fixed and sleeved below the bearing portion, the lifting gear is driven by the driving gear to rotate, and drives the bearing portion to rotate together, and the bearing portion can rise or fall along the cylinder barrel after rotating because the bearing portion is in threaded connection with the cylinder barrel. The transmission gear is provided with a tooth part parallel to the outer peripheral side of the transmission gear, the meshing part is contacted with the transmission assembly and performs transmission,
in some embodiments of the application, the jacking oil cylinder is further provided with a bidirectional hydraulic lock, so that the reliability of the jacking oil cylinder during jacking is improved, and the safety of the construction process is ensured.
In some embodiments of this application, the outside cover in top of bearing portion is equipped with the reinforcing ring, can prevent that bearing portion from yielding when the bearing, has still increased the lifting surface area of bearing portion simultaneously, has further improved the stability and the security of bearing portion.
In some embodiments of this application, be provided with the slide rail along its length direction on the lifter, elevator motor can follow the slide rail reciprocates, and during the motor starts, it is rotatory to drive the driving gear to drive elevator gear rotatory, and elevator gear drives bearing portion synchronous revolution, makes bearing portion rise or descend along the cylinder, and for the continuity of guaranteeing the motion, elevator motor also need rise or descend along with the driving gear is synchronous.
Based on the technical scheme, in the embodiment of the utility model, the cylinder barrel and the bearing part of the lifting oil cylinder form a screw rod and nut pair, and the screw rod and the oil cylinder are combined for lifting, so that the lifting device is suitable for lifting a large load, the complexity of the structure is reduced, and the overall weight of the device is reduced;
the jacking oil cylinder is used for jacking with load, after jacking is in place, the bearing part rises to the jacking height of the jacking oil cylinder in an idle-load mode, and the bearing part runs in an idle-load mode, so that the power required by the lifting motor is small, the weight is light, the power required by the driving of the lifting motor is small, and the cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic perspective view of an embodiment of a screw and cylinder integrated jacking device according to the present invention;
fig. 2 is a longitudinal sectional view of an embodiment of the screw and cylinder integrated jacking device of the present invention;
fig. 3 is a top view of an embodiment of the jacking device with integrated screw and cylinder.
In the figure:
10. a jacking oil cylinder; 11. a cylinder barrel; 12. a piston rod; 13. a first threaded portion; 14. a bidirectional hydraulic lock; 20. a load bearing part; 21. a lifting gear; 22. a second threaded portion; 23. a reinforcing ring; 30. a lifting motor; 31. a lifting rod; 32. a transmission assembly; 321. a driving gear; 322. a lower limiting plate; 323. an upper limiting plate; 33. a slide rail.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some, not all embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "central," "lateral," "longitudinal," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-3, the screw and cylinder integrated jacking device comprises:
the jacking oil cylinder 10 comprises a cylinder barrel 11 and a piston rod 12;
the bearing part 20 is of a hollow cylindrical structure and is sleeved outside the cylinder barrel 11, the inner wall of the bearing part 20 is abutted with the outer wall of the cylinder barrel 11, and the bearing part can move up and down along the cylinder barrel 11;
a lifting gear 21 fixed to the bearing part 20;
the lifting motor 30 is movably fixed on the lifting rod 31, the lifting rod 31 is located at one side of the jacking cylinder 10, and the lifting motor 30 drives the lifting gear 21 and the bearing part 20 to synchronously rotate through the transmission assembly 32, so that the bearing part 20 ascends or descends along the cylinder 11.
In the present embodiment, the cylinder 11 is screwed to the bearing 20. As shown in fig. 2, the outer wall of the cylinder 11 is provided with a first thread portion 13, the inner wall of the bearing portion 20 is provided with a second thread portion 22 engaged with the first thread portion 13, the bearing portion 20 can move up or down along the cylinder 11 when rotating, and the bearing portion 20 can bear a large load after the bearing portion 20 reaches the lift-up height of the lift-up cylinder 10.
The load bearing part 20 moves up and down along the cylinder 11, and the lifting motor 30 is required to drive the lifting gear 21 through the transmission assembly 32. As shown in fig. 1-2, the transmission assembly 32 includes a driving gear 321 engaged with the lifting gear 21, the driving gear 321 is fixed on the output shaft of the lifting motor 30, the top of the driving gear 321 is provided with an upper limiting plate 323, and the bottom is symmetrically provided with a lower limiting plate 322; as shown in fig. 1, the shortest distance between the rotation axis of the lifting gear 21 and the upper limiting plate 323 or the lower limiting plate 322 is less than or equal to the radius of the root circle of the lifting gear 21, that is, a part of the structure of the lifting gear 21 is limited between the upper limiting plate 323 and the lower limiting plate 322, when the bearing part 20 moves up and down along the cylinder 11, the lifting gear 21 is fixed on the bearing part 20 and is integrally provided with the bearing part 20, so the lifting gear 21 moves up and down along with the bearing part 20; when the lifting gear 21 rises, the upper limiting plate 323 receives the upward pulling force of the lifting gear 21, and the driving gear 321 and the lifting motor 30 rise along with the upward pulling force; when the lifting gear 21 descends, the lower limiting plate 322 is pressed downward by the lifting gear, and the driving gear 321 and the lifting motor 30 descend accordingly.
In the technical scheme, the 10 jacking oil cylinder is used for carrying out loaded jacking, after the jacking is in place, the transmission assembly 32 is driven by the lifting motor 30, the transmission assembly 32 drives the lifting gear 21 and the bearing part 20 to ascend along the cylinder barrel 11, and when the bearing part 20 runs to the height of the piston rod 12, the jacking oil cylinder 10 returns oil to be unloaded and the bearing part 20 bears load.
In order to make the jacking device compact in structure and save cost, and simultaneously ensure that the bearing part 20 can reach the jacking height for bearing, as shown in fig. 1, the lifting gear 21 is horizontally and fixedly sleeved below the bearing part 20, and when the bearing part 20 does not bear the weight, the top of the bearing part 20 is just flush with the top of the jacking oil cylinder 10, so that the jacking device is compact in structure; when jacking and bearing are carried out, the lifting gear 21 is driven by the driving gear 321 to rotate, the bearing part 20 is driven to rotate together, and the bearing part 20 is in threaded connection with the cylinder 11, so that the bearing part 20 can rise along the cylinder to reach a jacking height after rotating.
In order to improve the reliability of the jacking cylinder 10 and ensure the safety of construction, a bidirectional hydraulic lock 14 is further arranged on the jacking cylinder 10, as shown in fig. 1. The outside cover in top of bearing part 20 is equipped with reinforcing ring 23, can prevent that bearing part 20 from yielding when the bearing, can also increase the area of contact of bearing part 20 and top load simultaneously, further improves the stability and the security of bearing part 20.
In order to limit the moving track of the lifting motor 30 and increase the running stability of the motor, a sliding rail 33 is arranged on the lifting rod 31 along the length direction of the lifting rod, the lifting motor 30 can move up and down along the sliding rail 33, when the lifting motor 30 is started, the driving gear 321 is driven to rotate, the lifting gear 21 drives the bearing part 20 to synchronously rotate, the bearing part 20 is enabled to ascend or descend along the cylinder 11, and in order to ensure the continuity of the movement, the bearing part can ascend to the jacking height, and the lifting motor also needs to synchronously move along with the driving gear 321.
The cylinder diameter of the lifting cylinder in the embodiment is 250cm, the stroke is 350cm, and the load is set to be 980 KN. When the jacking device is used, the bottom end of the jacking device is fixed on the ground, at the moment, the bearing part 20 is located at the initial position, namely the lower end of the cylinder barrel 11, the top end of the jacking oil cylinder 10 is used for jacking a load to be jacked, oil is fed into the jacking oil cylinder 10, the piston rod 12 is lifted, and the jacking oil cylinder 10 stops feeding the oil after the load to be jacked is jacked to the position; starting the lifting motor 30 to rotate positively, driving the driving gear 321 to rotate, driving the lifting gear 21 to rotate by the driving gear 321, driving the bearing part 20 to rotate by the lifting gear 21, lifting the bearing part 20 along the cylinder 11 while rotating, lifting the bearing part 20, and pulling the upper limiting plate 323 upwards by the lifting gear 21, wherein under the action of the pulling force, the lifting motor 30 moves upwards along the slide rail 33; because the bearing part rises in no-load mode, the lifting motor 30 has small power and light weight, the weight of the equipment is reduced, and the cost can be reduced; when the bearing part 20 rises to be consistent with the height of the piston rod 12 of the jacking cylinder 10, namely when the bearing part rises to the jacking height, the lifting motor 30 is closed, then the jacking cylinder 10 returns oil, the piston rod 12 descends, the jacking cylinder 10 unloads, and at the moment, the bearing part 20 bears the load. After the construction is finished, the lifting motor 30 is started to rotate reversely, the driving gear 321 is driven to rotate in the reverse direction, the driving gear 321 drives the lifting gear 21 to rotate, the lifting gear 21 drives the bearing part 20 to rotate, the bearing part 20 descends along the cylinder 11 while rotating, the bearing part 20 descends, the lifting gear 21 has downward pressure on the lower limiting plate 322, and under the action of the pressure, the lifting motor 30 moves downwards along the sliding rail 33 until the bearing part 20 returns to the initial position, and the lifting motor 30 is closed.
In the embodiment of the utility model, the cylinder 11 of the lift cylinder 10 and the bearing part 20 form a screw-nut pair, and the screw and the cylinder are combined for lifting, so that the lift cylinder is suitable for lifting a large load, the complexity of the structure is reduced, and the whole weight of the device is reduced; the bidirectional hydraulic lock and the screw rod and nut pair provide double safety guarantee for the jacking device; meanwhile, as the bearing part 20 rises in an idle load manner, the power required by the lifting motor 30 is small, the weight is light, the power required by driving the lifting motor 30 is small, and the cost is further reduced.
Finally, it should be noted that: the embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (7)
1. The utility model provides a lead screw and integrative jacking device of hydro-cylinder which characterized in that includes:
the jacking oil cylinder comprises a cylinder barrel and a piston rod;
the bearing part is of a hollow cylindrical structure and is sleeved on the outer peripheral side of the cylinder barrel, the inner wall of the bearing part is abutted with the outer wall of the cylinder barrel, and the bearing part can move up and down along the cylinder barrel;
the lifting gear is fixed on the bearing part;
the lifting motor is movably fixed on a lifting rod, the lifting rod is positioned on the outer side of the jacking oil cylinder, and the lifting motor drives the lifting gear and the bearing part to synchronously rotate through a transmission assembly, so that the bearing part ascends or descends along the cylinder barrel.
2. The screw-cylinder integrated jacking device as claimed in claim 1, wherein the outer wall of the cylinder barrel is provided with a first threaded portion, the inner wall of the bearing part is provided with a second threaded portion engaged with the first threaded portion, and the bearing part can move up or down along the cylinder barrel when rotating.
3. The screw and cylinder integrated jacking device according to claim 2, wherein the transmission assembly comprises a driving gear engaged with the lifting gear, an upper limiting plate is arranged at the top of the driving gear, a lower limiting plate is symmetrically arranged at the bottom of the driving gear, and the shortest distance between the rotating shaft of the lifting gear and the upper limiting plate or the lower limiting plate is less than or equal to the radius of the root circle of the lifting gear.
4. The screw and cylinder integrated jacking device of claim 3, wherein the lifting gear is horizontally fixed below the bearing part, and the lifting gear is driven by the driving gear to rotate so as to drive the bearing part to rotate.
5. The screw-cylinder integrated jacking device according to claim 1, wherein the jacking cylinder is further provided with a bidirectional hydraulic lock.
6. The screw-cylinder integrated jacking device according to claim 5, wherein a reinforcing ring is sleeved outside the top end of the bearing part.
7. The screw-cylinder integrated jacking device according to claim 1, wherein the lifting rod is provided with a slide rail along a length direction thereof, and the lifting motor can move up and down along the slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297022.3U CN216426590U (en) | 2021-12-24 | 2021-12-24 | Jacking device integrating lead screw and oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123297022.3U CN216426590U (en) | 2021-12-24 | 2021-12-24 | Jacking device integrating lead screw and oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216426590U true CN216426590U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123297022.3U Active CN216426590U (en) | 2021-12-24 | 2021-12-24 | Jacking device integrating lead screw and oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216426590U (en) |
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2021
- 2021-12-24 CN CN202123297022.3U patent/CN216426590U/en active Active
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